Once I have tried to explain to my grandmother what blockchain is, how it works and how people can make money from it, and she said that is all a scam and she couldn't trust it. I am afraid that farmers from third world, who hasn't have much contact with technology, can also be skeptical.

Yes I feel that way too, When I first got introduced to blockchain

but with all the features that are obvious enough to be accessed on a normal tech phone, Farmers will access information and proceedings of cottm coin on a first hand basis.